hg: hsx/hotspot-main/hotspot: 14 new changesets

bengt.rutisson at oracle.com bengt.rutisson at oracle.com
Fri Jan 27 04:36:17 PST 2012 

Changeset: 2e966d967c5c
Author:    johnc
Date:      2012-01-13 13:27 -0800
URL:       http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/rev/2e966d967c5c

7121547: G1: High number mispredicted branches while iterating over the marking bitmap
Summary: There is a high number of mispredicted branches associated with calling BitMap::iteratate() from within CMBitMapRO::iterate(). Implement a version of CMBitMapRO::iterate() directly using inline-able routines.
Reviewed-by: tonyp, iveresov

! src/share/vm/gc_implementation/g1/concurrentMark.cpp
! src/share/vm/gc_implementation/g1/concurrentMark.hpp
! src/share/vm/gc_implementation/g1/concurrentMark.inline.hpp
! src/share/vm/utilities/bitMap.inline.hpp

Changeset: 851b58c26def
Author:    brutisso
Date:      2012-01-16 11:21 +0100
URL:       http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/rev/851b58c26def

7130334: G1: Change comments and error messages that refer to CMS in g1/concurrentMark.cpp/hpp
Summary: Removed references to CMS in the concurrentMark.cpp/hpp files.
Reviewed-by: tonyp, jmasa, johnc

! src/share/vm/gc_implementation/g1/concurrentMark.cpp
! src/share/vm/gc_implementation/g1/concurrentMark.hpp

Changeset: 9509c20bba28
Author:    brutisso
Date:      2012-01-16 22:10 +0100
URL:       http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/rev/9509c20bba28

6976060: G1: humongous object allocations should initiate marking cycles when necessary
Reviewed-by: tonyp, johnc

! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp
! src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp
! src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp
! src/share/vm/gc_implementation/g1/vm_operations_g1.cpp
! src/share/vm/gc_interface/gcCause.cpp
! src/share/vm/gc_interface/gcCause.hpp

Changeset: 0b3d1ec6eaee
Author:    tonyp
Date:      2012-01-18 10:30 -0500
URL:       http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/rev/0b3d1ec6eaee

7097586: G1: improve the per-space output when using jmap -heap
Summary: Extend the jmap -heap output for G1 to include some more G1-specific information.
Reviewed-by: brutisso, johnc, poonam

! agent/src/share/classes/sun/jvm/hotspot/gc_implementation/g1/G1CollectedHeap.java
! agent/src/share/classes/sun/jvm/hotspot/gc_implementation/g1/G1MonitoringSupport.java
+ agent/src/share/classes/sun/jvm/hotspot/gc_implementation/g1/HeapRegionSetBase.java
! agent/src/share/classes/sun/jvm/hotspot/tools/HeapSummary.java
! src/share/vm/gc_implementation/g1/concurrentMark.cpp
! src/share/vm/gc_implementation/g1/heapRegionSet.hpp
! src/share/vm/gc_implementation/g1/vmStructs_g1.hpp

Changeset: 7ca7be5a6a0b
Author:    johnc
Date:      2012-01-17 10:21 -0800
URL:       http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/rev/7ca7be5a6a0b

7129271: G1: Interference from multiple threads in PrintGC/PrintGCDetails output
Summary: During an initial mark pause, signal the Concurrent Mark thread after the pause output from PrintGC/PrintGCDetails is complete.
Reviewed-by: tonyp, brutisso

! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp

Changeset: a8a126788ea0
Author:    tonyp
Date:      2012-01-19 09:13 -0500
URL:       http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/rev/a8a126788ea0

7078465: G1: Don't use the undefined value (-1) for the G1 old memory pool max size
Reviewed-by: johnc, brutisso

! src/share/vm/gc_implementation/g1/g1MonitoringSupport.hpp
! src/share/vm/services/g1MemoryPool.hpp

Changeset: 57025542827f
Author:    brutisso
Date:      2012-01-20 18:01 +0100
URL:       http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/rev/57025542827f

7131791: G1: Asserts in nightly testing due to 6976060
Summary: Create a handle and fake an object to make sure that we don't loose the memory we just allocated
Reviewed-by: tonyp, stefank

! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp

Changeset: 6a78aa6ac1ff
Author:    brutisso
Date:      2012-01-23 20:36 +0100
URL:       http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/rev/6a78aa6ac1ff

7132311: G1: assert((s == klass->oop_size(this)) || (Universe::heap()->is_gc_active() && ((is_typeArray()...
Summary: Move the check for when to call collect() to before we do a humongous object allocation
Reviewed-by: stefank, tonyp

! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
! src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp
! src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp

Changeset: 877914d90c57
Author:    tonyp
Date:      2012-01-24 17:08 -0500
URL:       http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/rev/877914d90c57

7132398: G1: java.lang.IllegalArgumentException: Invalid threshold: 9223372036854775807 > max (1073741824)
Summary: Was not passing the right old pool max to the memory pool constructor in the fix for 7078465.
Reviewed-by: brutisso, johnc

! src/share/vm/services/g1MemoryPool.cpp

Changeset: d30fa85f9994
Author:    johnc
Date:      2012-01-12 00:06 -0800
URL:       http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/rev/d30fa85f9994

6484965: G1: piggy-back liveness accounting phase on marking
Summary: Remove the separate counting phase of concurrent marking by tracking the amount of marked bytes and the cards spanned by marked objects in marking task/worker thread local data structures, which are updated as individual objects are marked.
Reviewed-by: brutisso, tonyp

! src/share/vm/gc_implementation/g1/concurrentMark.cpp
! src/share/vm/gc_implementation/g1/concurrentMark.hpp
! src/share/vm/gc_implementation/g1/concurrentMark.inline.hpp
! src/share/vm/gc_implementation/g1/concurrentMarkThread.cpp
! src/share/vm/gc_implementation/g1/concurrentMarkThread.hpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp
! src/share/vm/gc_implementation/g1/g1EvacFailure.hpp
! src/share/vm/gc_implementation/g1/g1OopClosures.hpp
! src/share/vm/gc_implementation/g1/heapRegion.hpp

Changeset: eff609af17d7
Author:    tonyp
Date:      2012-01-25 12:58 -0500
URL:       http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/rev/eff609af17d7

7127706: G1: re-enable survivors during the initial-mark pause
Summary: Re-enable survivors during the initial-mark pause. Afterwards, the concurrent marking threads have to scan them and mark everything reachable from them. The next GC will have to wait for the survivors to be scanned.
Reviewed-by: brutisso, johnc

! src/share/vm/gc_implementation/g1/concurrentMark.cpp
! src/share/vm/gc_implementation/g1/concurrentMark.hpp
! src/share/vm/gc_implementation/g1/concurrentMark.inline.hpp
! src/share/vm/gc_implementation/g1/concurrentMarkThread.cpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
! src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp
! src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp
! src/share/vm/gc_implementation/g1/g1EvacFailure.hpp
! src/share/vm/gc_implementation/g1/g1OopClosures.hpp
! src/share/vm/gc_implementation/g1/g1OopClosures.inline.hpp
! src/share/vm/gc_implementation/g1/heapRegion.inline.hpp
! src/share/vm/runtime/mutexLocker.cpp
! src/share/vm/runtime/mutexLocker.hpp

Changeset: a5244e07b761
Author:    jcoomes
Date:      2012-01-25 21:14 -0800
URL:       http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/rev/a5244e07b761

7112413: JVM Crash, possibly GC-related
Summary: disable UseAdaptiveSizePolicy with the CMS and ParNew
Reviewed-by: johnc, brutisso

! src/share/vm/runtime/arguments.cpp

Changeset: b4ebad3520bb
Author:    johnc
Date:      2012-01-26 14:14 -0800
URL:       http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/rev/b4ebad3520bb

7133038: G1: Some small profile based optimizations
Summary: Some minor profile based optimizations. Reduce the number of branches and branch mispredicts by removing some virtual calls, through closure specalization, and refactoring some conditional statements.
Reviewed-by: brutisso, tonyp

! src/share/vm/gc_implementation/g1/g1OopClosures.hpp
! src/share/vm/gc_implementation/g1/g1OopClosures.inline.hpp
! src/share/vm/gc_implementation/g1/g1RemSet.cpp
! src/share/vm/gc_implementation/g1/g1RemSet.hpp
! src/share/vm/gc_implementation/g1/g1RemSet.inline.hpp
! src/share/vm/gc_implementation/g1/g1_specialized_oop_closures.hpp
! src/share/vm/gc_implementation/g1/heapRegion.cpp

Changeset: 0a10d80352d5
Author:    brutisso
Date:      2012-01-27 09:04 +0100
URL:       http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/rev/0a10d80352d5

Merge

- src/os/bsd/vm/decoder_bsd.cpp
! src/share/vm/runtime/arguments.cpp
! src/share/vm/runtime/mutexLocker.cpp
! src/share/vm/runtime/mutexLocker.hpp

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